The common interference methods in drone countermeasures technology mainly include the following. These methods are based on different technical principles and strategies to achieve interference and control of drones:

Electromagnetic interference (EMI):

Electromagnetic interference is the most common and widely used countermeasure technology for unmanned aerial vehicles. By emitting electromagnetic waves to interfere with the electronic control system of drones, causing them to lose control or malfunction.
The specific methods include:

Electromagnetic interference:
Block communication between the drone and the control station. Cut off the remote control signal, data transmission, and image transmission signal of the drone. Force them to enter a self-protection state and achieve forced landing or evacuation.

Navigation signal interference:
Satellite navigation and positioning systems that interfere with civilian drones. Causing the drone to lose precise positioning, affecting its flight control system, and limiting its flight.

Sound wave interference:
Interference with the normal operation of drone gyroscopes. Make it impossible for drones to maintain their own balance and fly normally.

Physical destruction:

Use missiles, laser weapons, microwave weapons, combat drones, and conventional firepower to directly destroy target drones.

But this method has high cost, high targeting accuracy, and may cause associated losses. Therefore, it is almost infeasible in the civilian field.

Interception capture:

Intercept and capture drones from the ground or air. The main methods include using capture nets, drone capture, eagle capture, etc.

But this method is difficult to operate, and with the development of drone obstacle avoidance technology, interception and capture will become increasingly difficult.

Deception control:

By transmitting false navigation satellite signals or radio signals. Deceiving navigation terminals or control systems of drones. Position it in a preset false position or execute false instructions.

This method can achieve the goals of setting up no fly zones, deceiving return points, and deceiving routes.

Radio frequency interference:

Using specific radio frequencies to interfere with the control or communication systems of drones.

This method achieves interference effects by generating radio signals of specific frequencies or interfering with the communication frequency of drones.

High energy laser interference:

Using high-energy laser beams to interfere with the control or sensor systems of drones.

This method interferes with the normal operation of drones by generating laser beams of specific wavelengths and energies.

These principles of drone countermeasures technology are not mutually exclusive, and in practical applications, multiple principles may be combined to achieve better countermeasures. At the same time, the use of drone countermeasure equipment should comply with relevant laws and regulations, ensuring that it is carried out under legal and safe conditions.